JPH0318030B2 - - Google Patents
Info
- Publication number
- JPH0318030B2 JPH0318030B2 JP4823285A JP4823285A JPH0318030B2 JP H0318030 B2 JPH0318030 B2 JP H0318030B2 JP 4823285 A JP4823285 A JP 4823285A JP 4823285 A JP4823285 A JP 4823285A JP H0318030 B2 JPH0318030 B2 JP H0318030B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- line
- compressor
- working gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims 2
- 230000007423 decrease Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/045—Controlling
- F02G1/05—Controlling by varying the rate of flow or quantity of the working gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】
（発明の利用分野）
本発明は、スターリング機関の出力制御装置に
関し、特に詳述すれば、減速時の操作レバーの操
作力を小とし且つ減速走行時圧縮器及び吸入吐出
弁にかかる負担を小さくさせるために利用され
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an output control device for a Stirling engine, and more particularly, the present invention relates to an output control device for a Stirling engine. It is used to reduce the load on the discharge valve.
（従来技術とその問題点）
外燃機関であるスターリング機関の出力は、作
動ガスを封入した作動空間内の圧によつて決めら
れる。たとえば、スターリング機関の出力を高め
る時は作動空間内の作動ガス圧を上昇させる。こ
のようなスターリング機関の出力制御装置の代表
的従来例を第２図に示す（特開昭46−23534号公
報参照）。スターリング機関の作動空間１を、逆
止弁２を介して圧縮機３に最高サイクル圧ライン
４およびライン１５によつて連結させる。該ライ
ン４とライン１５とは減圧弁５で連結する。又、
作動空間１は、逆止弁６を介して最低サイクル圧
ライン７およびライン１６によつて圧縮機３に連
結される。該ライン７とライン１６とは増圧弁８
で連結する。９は高圧タンクを示す。(Prior art and its problems) The output of a Stirling engine, which is an external combustion engine, is determined by the pressure within a working space filled with working gas. For example, when increasing the output of a Stirling engine, the working gas pressure in the working space is increased. A typical conventional example of such a Stirling engine output control device is shown in FIG. 2 (see Japanese Patent Laid-Open No. 46-23534). The working space 1 of the Stirling engine is connected via a check valve 2 to a compressor 3 by a maximum cycle pressure line 4 and a line 15 . The line 4 and line 15 are connected through a pressure reducing valve 5. or,
The working space 1 is connected to the compressor 3 by a minimum cycle pressure line 7 and a line 16 via a check valve 6 . The line 7 and line 16 are connected to the pressure increase valve 8.
Connect with. 9 indicates a high pressure tank.
増圧弁８の下流側をフイードバツクピストンシ
リンダ１０に接続し、該シリンダ１０内のピスト
ンをアクセルレバー１１の端部にロツドを介して
連結する、アクセルレバー１１は、増減弁８，５
の弁棒１２，１３と対向する。フイードバツクピ
ストンシリンダ１０は、最低サイクル圧ライン７
の圧に応じてピストンが動き、アクセルレバー１
１の支点１４の位置を変位させる働きをする。 The accelerator lever 11 connects the downstream side of the pressure increasing valve 8 to a feedback piston cylinder 10, and connects the piston in the cylinder 10 to the end of the accelerator lever 11 via a rod.
The valve stems 12 and 13 face each other. The feedback piston cylinder 10 is connected to the lowest cycle pressure line 7.
The piston moves according to the pressure of the accelerator lever 1.
It functions to displace the position of the fulcrum 14 of 1.
スターリング機関の出力を増大させる時は、ア
クセルレバー１１を左方向に押し増圧弁８を開と
させ、高圧作動ガスを圧縮機３或いはタンク９か
ら作動空間１に供給する。又、スターリング機関
の出力を下げる時は、アクセルレバー１１を右方
向に押し、減圧弁５を開とさせ、作動空間１の圧
を圧縮機３側に抜き減圧させる。出力の増減が安
定域（所定値）に入ると、可動支点１４の変位に
より増減圧弁８，５が閉じる。 When increasing the output of the Stirling engine, the accelerator lever 11 is pushed to the left to open the pressure increase valve 8, and high-pressure working gas is supplied from the compressor 3 or tank 9 to the working space 1. Further, when lowering the output of the Stirling engine, the accelerator lever 11 is pushed to the right to open the pressure reducing valve 5, and the pressure in the working space 1 is released to the compressor 3 side to reduce the pressure. When the increase/decrease in output enters a stable range (predetermined value), the pressure increase/decrease valves 8, 5 close due to the displacement of the movable fulcrum 14.
ところで、定常運転時、圧縮機３は、ライン１
５から作動ガスを吸入し、ライン１６に高圧作動
ガスを吐出するので、両ライン１５，１６の圧力
差は大となり、即ち、大きな圧力変化が生じ、圧
縮器３の仕事量が大きく、圧縮器に対する障害も
多となる。そこで、特公昭45−3124号公報にみら
れる如く、減圧弁５を省き両ライン１５，１６間
に弁１８を有するバイパスライン１７を設けるこ
とが提案されている。この手段は、スターリング
機関の定常運転時には、減速弁となる弁１８を手
動で開とし、両ライン１５，１６の作動ガス圧を
ほぼ同じとさせる。この結果、該定常運転時に
は、作動ガスはライン１６から、ライン１７およ
びライン１５を介し圧縮器３に戻り、圧縮器３
は、ほとんど圧縮仕事をしないので、前述した圧
縮器３への障害を解消させることができる。しか
しながら、定常運転に入つた時、手動で弁１８を
開き、減速時には手動で減速弁１８を閉じる作業
は煩しく、これを怠つた時の圧縮器３への障害を
考えると好ましいものでない。 By the way, during steady operation, the compressor 3
Since working gas is sucked in from line 5 and high-pressure working gas is discharged to line 16, the pressure difference between both lines 15 and 16 is large, that is, a large pressure change occurs, and the work of the compressor 3 is large, causing the compressor to There are many obstacles to this. Therefore, as seen in Japanese Patent Publication No. 45-3124, it has been proposed to omit the pressure reducing valve 5 and provide a bypass line 17 having a valve 18 between the lines 15 and 16. In this means, during steady operation of the Stirling engine, a valve 18 serving as a deceleration valve is manually opened to make the working gas pressures of both lines 15 and 16 substantially the same. As a result, during the steady operation, the working gas returns to the compressor 3 from the line 16 via the line 17 and the line 15.
Since the compressor performs almost no compression work, the above-mentioned trouble to the compressor 3 can be eliminated. However, it is cumbersome to manually open the valve 18 when steady operation begins and manually close the deceleration valve 18 during deceleration, and is not preferable in view of damage to the compressor 3 if this is neglected.
そこで、特公昭46−23535号公報は、操作レバ
ー１１を二本設け、一方のレバーでバイパス弁１
８の開閉を制御することを教示する。しかし、こ
の特公昭46−23535号公報も、バイパス弁１８の
開閉のためのレバーの手動操作を必要とし、又、
バイパス弁１８の上流と下流の圧力差によりレバ
ーの操作力も大となつている。 Therefore, in Japanese Patent Publication No. 46-23535, two operating levers 11 are provided, and one lever controls the bypass valve.
Teach students to control the opening and closing of 8. However, this Japanese Patent Publication No. 46-23535 also requires manual operation of a lever to open and close the bypass valve 18, and
Due to the pressure difference between the upstream and downstream sides of the bypass valve 18, the lever operation force is also increased.
（本発明の技術的課題）
本発明は、前述した従来技術の不具合を解消さ
せることを、解決すべき技術的課題とする。(Technical Problem of the Present Invention) A technical problem to be solved by the present invention is to eliminate the problems of the prior art described above.
（本発明の技術的手段とその作用）
本発明は、減圧弁の上流側と増圧弁の下流側と
を、電磁弁を有するバイパス回路で連結し、操作
レバーの減圧弁開方向への動きにより作動するセ
ンサを配し、該センサからの出力により電磁弁の
開閉を制御する手段を基本的に採用する。この手
段の採用は、定常運転時には開となつている電磁
弁が、操作レバーを出力を減ずる方向に動かす
と、センサが電源と電磁弁を結ぶ電気回路を閉と
し、電磁弁を閉じ、バイパス回路を閉鎖する。こ
の状態で、減圧弁が開となつているので、圧縮器
は作動ガスを作動空間及び最高サイクル圧ライン
から吸引し、作動空間の圧を下げる。減速が安定
域に入ると、可動支点が移動し、操作レバーが減
圧弁を開から閉とさせ、又、センサがオフ状態と
なり、電磁弁が開となる。この結果、定常運転時
には、圧縮器からの作動ガスは、バイパス回路を
通つて、再び、圧縮器に戻る流れとなり、圧縮器
の仕事量はきわめて小さいものとなる。(Technical means of the present invention and its effects) The present invention connects the upstream side of the pressure reducing valve and the downstream side of the pressure increasing valve by a bypass circuit having a solenoid valve, and the movement of the operating lever in the pressure reducing valve opening direction connects the upstream side of the pressure reducing valve and the downstream side of the pressure increasing valve. Basically, a method is adopted in which an operating sensor is provided and the opening and closing of the electromagnetic valve is controlled by the output from the sensor. This method is adopted because when the solenoid valve is open during steady operation, when the operating lever is moved in the direction to reduce the output, the sensor closes the electric circuit connecting the power supply and the solenoid valve, closing the solenoid valve and bypassing the solenoid valve. will be closed. In this state, since the pressure reducing valve is open, the compressor sucks working gas from the working space and the highest cycle pressure line to lower the pressure in the working space. When the deceleration enters a stable range, the movable fulcrum moves, the operating lever changes the pressure reducing valve from opening to closing, the sensor turns off, and the solenoid valve opens. As a result, during steady operation, the working gas from the compressor flows back to the compressor through the bypass circuit, and the amount of work of the compressor becomes extremely small.
操作レバーの動きは、電気信号によつて電磁弁
に送られるので、バイパス回路の開閉に要する操
作力はきわめて小さいものとなる。 Since the movement of the operating lever is sent to the solenoid valve by an electric signal, the operating force required to open and close the bypass circuit is extremely small.
（実施例）
第１図に本発明の実施例を示すが、第２図に示
した従来例と同一部品には同符号を記し、その説
明を省略する。(Embodiment) An embodiment of the present invention is shown in FIG. 1, and the same parts as those in the conventional example shown in FIG.
減圧弁５の弁棒１３に、マイクロスイツチの如
きセンサ１９を配す。一方、減圧弁５の下流側の
ライン１５と、増圧弁８の上流側のライン１６と
を、電磁弁２０を有するバイパスライン１７で連
結させる。電磁弁２０は、センサ１９に電気的に
接続される。電磁弁２０は、スターリング機関の
定常運転時には、開状態であり、圧縮器３からの
作動ガスは、ライン１６からバイパスライン１７
を通つて、ライン１５から圧縮器３に戻り、圧縮
器３の吸入、吐出量は同じで、圧縮器３は圧縮仕
事をしない。 A sensor 19 such as a micro switch is arranged on the valve stem 13 of the pressure reducing valve 5. On the other hand, a line 15 on the downstream side of the pressure reducing valve 5 and a line 16 on the upstream side of the pressure increasing valve 8 are connected by a bypass line 17 having a solenoid valve 20. Solenoid valve 20 is electrically connected to sensor 19 . The solenoid valve 20 is in an open state during steady operation of the Stirling engine, and the working gas from the compressor 3 is routed from the line 16 to the bypass line 17.
The air returns to the compressor 3 from the line 15 through the line 15, and the suction and discharge amounts of the compressor 3 are the same, and the compressor 3 does no compression work.
操作レバー１１を、弁棒１３を押し、減圧弁５
を開とさせるように変位すると、この操作レバー
１１の動きはセンサ１９を閉じ、電磁弁２０へ通
電をなし、該電磁弁２０を閉じる。この結果、バ
イパス回路は閉じることになり、作動空間１の作
動ガスは、最高サイクル圧ライン４、減圧弁５お
よびライン１５を介して、圧縮器３に吸入され、
圧縮された作動ガスは、ライン１６に吐出され、
作動空間１の圧が下がり、スターリング機関の出
力が減少する。出力減少状態が安定すると、可動
支点１４が動き、操作レバー１１の弁棒１３を押
す力はなくなり、減圧弁５が閉じ、又、センサ１
９も電磁弁２０への通電を切る。このため、電磁
弁２０が開となり、バイパス回路が復帰する。 Press the operating lever 11 and the valve stem 13 to close the pressure reducing valve 5.
When displaced to open, this movement of the operating lever 11 closes the sensor 19, energizes the solenoid valve 20, and closes the solenoid valve 20. As a result, the bypass circuit is closed, and the working gas in the working space 1 is sucked into the compressor 3 via the maximum cycle pressure line 4, the pressure reducing valve 5 and the line 15,
The compressed working gas is discharged into line 16;
The pressure in the working space 1 decreases, and the output of the Stirling engine decreases. When the output reduction state becomes stable, the movable fulcrum 14 moves, the force that pushes the valve stem 13 of the operating lever 11 disappears, the pressure reducing valve 5 closes, and the sensor 1
9 also turns off the power to the solenoid valve 20. Therefore, the solenoid valve 20 is opened and the bypass circuit is restored.
（効果）
本発明では、バイパス回路に組込まれる弁の位
置は、操作レバーの位置と無関係に選定できるの
で、設計の自由度が高い。又、バイパスラインを
圧縮器の吸入、吐出弁に近接して設けてるので、
バイパスラインの長さを短くし、作動ガスの流れ
抵抗を小さくし、圧縮器の負担をより軽くするこ
とができる。(Effects) In the present invention, the position of the valve incorporated in the bypass circuit can be selected regardless of the position of the operating lever, so the degree of freedom in design is high. In addition, the bypass line is installed close to the compressor's suction and discharge valves, so
By shortening the length of the bypass line, the flow resistance of the working gas can be reduced, and the load on the compressor can be further reduced.
第１図は本発明の実施例を示す説明図、および
第２図は従来例を示す説明図である。
図中、１……作動空間、３……圧縮機、４……
最高サイクル圧ライン、５……減圧弁、７……最
低サイクル圧ライン、８……増圧弁、１１……操
作レバー、１９……センサ、２０……電磁弁。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a conventional example. In the figure, 1... working space, 3... compressor, 4...
Maximum cycle pressure line, 5... pressure reducing valve, 7... minimum cycle pressure line, 8... pressure increasing valve, 11... operating lever, 19... sensor, 20... solenoid valve.
Claims (1)
よび作動ガス貯蔵タンクに連結させる最高サイク
ルラインに減圧弁を設け、さらに、前記作動空間
を逆止弁を介して前記作動ガス貯蔵タンクに連結
する最低サイクル圧ラインに増圧弁を設け、前記
増減圧弁を可動支点を中心として揺動する操作レ
バーにより開閉制御するスターリング機関の出力
制御装置において、前記減圧弁の下流側と前記増
圧弁の上流側とを結ぶバイパス回路に電磁弁を配
し、前記操作レバーを前記減圧弁の開弁方向に動
かした時作動するセンサを配し、該センサの出力
により前記電磁弁の開閉を制御させることを特徴
とするスターリング機関の出力制御装置。1. A pressure reducing valve is provided on the highest cycle line that connects the working space to the working gas compressor and the working gas storage tank via a check valve, and further, the working space is connected to the working gas storage tank via the check valve. In an output control device for a Stirling engine, a pressure increaser valve is provided in the lowest cycle pressure line, and the pressure increaser/reducer valve is controlled to open and close by an operating lever that swings about a movable fulcrum, the downstream side of the pressure reducer valve and the upstream side of the pressure increaser valve. A solenoid valve is disposed in a bypass circuit connecting the pressure reducing valve, and a sensor is disposed that is activated when the operating lever is moved in the opening direction of the pressure reducing valve, and opening and closing of the solenoid valve is controlled by the output of the sensor. Stirling engine output control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823285A JPS61207864A (en) | 1985-03-13 | 1985-03-13 | Output control device of stirling engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823285A JPS61207864A (en) | 1985-03-13 | 1985-03-13 | Output control device of stirling engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61207864A JPS61207864A (en) | 1986-09-16 |
| JPH0318030B2 true JPH0318030B2 (en) | 1991-03-11 |
Family
ID=12797692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4823285A Granted JPS61207864A (en) | 1985-03-13 | 1985-03-13 | Output control device of stirling engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61207864A (en) |
-
1985
- 1985-03-13 JP JP4823285A patent/JPS61207864A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61207864A (en) | 1986-09-16 |
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